Description These are water bottle caps, made of premium material. Good sealing effect prevents spillage. Simple and reasonable design and it is in fine craftsmanship. It is the best replacement caps for your old, broken caps. Push and pull bottle replacement caps can be used many times, reusable and useful, safe and reliable. Features -Color:White -Material:PE -Size:3.50X2.90X2.90cm/1.38X1.14X1.14in -Note: Only suitable for water bottle mouths with an outer diameter of 28mm! - The caps feature simple appearance design that is spill-resistant and has stronger seal effect. - Small and compact size, light weight, it is easy to carry and store, will not take up too much space. - Constructed by using safe and stable materials, it safety and can use it with confidence. - It has simple structure and is very convenient for you to use, practical and durable for you. - Excellent and leak-proof, protection and useful, prevent spillage, useful for sports water bottles. The caps feature simple appearance design that is spill-resistant and has stronger seal effect. Small and compact size, light weight, it is easy to carry and store, will not take up too much space. Constructed by using safe and stable materials, it safety and can use it with confidence. It has simple structure and is very convenient for you to use, practical and durable for you. Excellent and leak-proof, protection and useful, prevent spillage, useful for sports water bottles.